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  #31  
Old 11-28-2009, 11:15 PM
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Spring

Quote:
Originally Posted by soothappens View Post
Thanks , that was what I was looking for. Does the spring go on the bottom and push the filter up? . . .
Yes, but fuel circulates through the bottom of the filter (where the spring is) so a strong magnet probably would attract metal particles to that point. However, metal particles probably wouldn't get through the filter media so I don't see why the magnet would be needed. But if it makes you feel safer . . . maybe you can get the people who make the "fuel line magnet" to market it for you.

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
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  #32  
Old 11-29-2009, 12:54 AM
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Quote:
Originally Posted by Jeremy5848 View Post
Yes, but fuel circulates through the bottom of the filter (where the spring is) so a strong magnet probably would attract metal particles to that point. However, metal particles probably wouldn't get through the filter media so I don't see why the magnet would be needed. But if it makes you feel safer . . . maybe you can get the people who make the "fuel line magnet" to market it for you.
I was thinking the fuel flowed in from the outer portion and out through the inner port. Bassackwards thinking? If so then my magnet is one away from info - mercial status!

Not looking to save fuel with this magnet though , maybe a pump or injector
possibly just a pacifier after finding the crap in the other filter.
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Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #33  
Old 12-03-2009, 11:07 AM
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Quote:
Originally Posted by Diesel911 View Post
All of the above is listed in the Thread some place.

You do not have to alter the Stock Mercedes Fuel Filter Housing at all to to 1"-14 threads (Infact if you did so it would drill out too much metal and screw up the passages the Fuel gotes througn).

Tha CAT filter conversion has the advantage that by removing the adapter you could still use the Stock Mercedes Filter because you do not alter the origional Filter Bolt.

The spacer plate to move the filter away from the metal casting web below is just a matter of drill 4 holes in a flat plate of metal. That is not difficult.

Below is a pick of the adapter. The central hole is best drilled out on a Lathe but someone who is good with a drill press could do it.
You start with the threaded end of a 1"-14 bolt and you need to drill and tap it for the Filter Bolt Size (don't remember the size right off).

Inside thread is 14mm 1.5 . Tap drill size is 12.7 mm.
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Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #34  
Old 12-03-2009, 12:27 PM
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Quote:
Originally Posted by soothappens View Post
Inside thread is 14mm 1.5 . Tap drill size is 12.7 mm.
12.7mm = 1/2 Inch
See the Metric unit converter below.
http://www.worldwidemetric.com/metcal.htm
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  #35  
Old 12-03-2009, 01:17 PM
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Instead of trying to make a oil/fuel filter cutter, for us lazy people . here is a link to Summitt racing.

http://www.summitracing.com/search/?keyword=oil%20filter%20cutter&dds=1

Charlie
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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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  #36  
Old 12-03-2009, 02:58 PM
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Yes

Many MB fuel filters each year for tech sessions.

I have seen an increase of petro sludge/goo, and have been tempted to send some samples for lab analysis.

Most I attribute to alternative fuel, some seems to be from ULSD breaking down rubber hoses/seals + very slowly breaking down old tank sludge.

Hose and O-ring replacement has gone up 50% this past year, suspected cause is ULSD.
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  #37  
Old 12-04-2009, 12:44 AM
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Quote:
Originally Posted by whunter View Post
. . . some seems to be from ULSD breaking down rubber hoses/seals + very slowly breaking down old tank sludge.

Hose and O-ring replacement has gone up 50% this past year, suspected cause is ULSD.
The only difference between ULSD and its predecessor is less sulfur. I wonder if the ULSD is pulling sulfur out of the rubber compounds that form the seals and o-rings?

Jeremy
__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970
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  #38  
Old 12-04-2009, 12:52 PM
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Quote:
Originally Posted by Jeremy5848 View Post
The only difference between ULSD and its predecessor is less sulfur. I wonder if the ULSD is pulling sulfur out of the rubber compounds that form the seals and o-rings?

Jeremy
The process to remove sulfur also removes lubricity from the fuel.

So now weve all had to resort to chemistry at the pump with additives. wonder what that does to air quality?
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Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #39  
Old 12-04-2009, 01:04 PM
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Quote:
Originally Posted by whunter View Post
Many MB fuel filters each year for tech sessions.

I have seen an increase of petro sludge/goo, and have been tempted to send some samples for lab analysis.

Most I attribute to alternative fuel, some seems to be from ULSD breaking down rubber hoses/seals + very slowly breaking down old tank sludge.

Hose and O-ring replacement has gone up 50% this past year, suspected cause is ULSD.
Have you found any metal? I also noted the black sludge at the top of the filter when changing it. I didnt even think about the hoses and O-Rings good theory.

Metal could possibly be just old pumps down here in south texas. some stations still resemble the old 60's car movies.
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Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #40  
Old 12-04-2009, 01:33 PM
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Answer

Quote:
Originally Posted by soothappens View Post
Have you found any metal? I also noted the black sludge at the top of the filter when changing it. I didnt even think about the hoses and O-Rings good theory.

Metal could possibly be just old pumps down here in south texas. some stations still resemble the old 60's car movies.
Several times I have found high volumes of aluminum, assumed to be from the fuel station, all of these came from one source.
Perhaps their in ground tank pump housing needs more lubrication.
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  #41  
Old 12-04-2009, 01:58 PM
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Quote:
Originally Posted by whunter View Post
Several times I have found high volumes of aluminum, assumed to be from the fuel station, all of these came from one source.
Perhaps their in ground tank pump housing needs more lubrication.

Yup thats what I was thinking , but I figured the fuel was the lubricant same as hydraulics. The thing that puzzled me was if fuel was the lubricant what about the gasoline pumps ?

The start of this thread was a buyer beware on quality we may be getting at the pumps, apparently I'm not the only one.

It also goes to show you cant trust the filters at the station, or the attendants for that matter. I was told they caught one worker filling up her car and then refilling the tanks with a garden hose. Bad economy high fuel prices makes you wonder when you fill yours up.

All that time invested under the hood to have fuel destroy it !!!
__________________


Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #42  
Old 12-04-2009, 06:03 PM
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Quote:
Originally Posted by Jeremy5848 View Post
The only difference between ULSD and its predecessor is less sulfur. I wonder if the ULSD is pulling sulfur out of the rubber compounds that form the seals and o-rings?

Jeremy

This is not true. If you perform speciation of the hydrocarbons, you will see this. Hydrodesulfurization is a non-selective process, and it opens up every carbon-carbon double bond and aromatic rings before it gets to the sulfur. The molecular structure of most sulfur compounds in diesel fuel makes it tough to get to the sulfur.

Thus you have a fairly significant shift in fuel chemistry. The sulfur-aromatic compounds used to "alloy" with some of the metal surfaces to create soft, low wear faces, but now you do not have this as much, thus the wear. The change in chemistry to remove the sulfur also changes the solvency parameters, both solving junk and gunk, as well as sometimes rubber parts as well.
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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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  #43  
Old 12-05-2009, 09:41 PM
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This user says...

Thanks to: JHZR2 for his informative treatise on ULSD effects.

(AND,yes we all realize it's Heresy according to F.I. ['Kinda miss his Rants] )
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  #44  
Old 12-06-2009, 12:27 PM
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Quote:
Originally Posted by JHZR2 View Post
This is not true. If you perform speciation of the hydrocarbons, you will see this. Hydrodesulfurization is a non-selective process, and it opens up every carbon-carbon double bond and aromatic rings before it gets to the sulfur. The molecular structure of most sulfur compounds in diesel fuel makes it tough to get to the sulfur.

Thus you have a fairly significant shift in fuel chemistry. The sulfur-aromatic compounds used to "alloy" with some of the metal surfaces to create soft, low wear faces, but now you do not have this as much, thus the wear. The change in chemistry to remove the sulfur also changes the solvency parameters, both solving junk and gunk, as well as sometimes rubber parts as well.

Thanks for the in depth. Im still looking through the dictionary to try and decipher it What your basically saying is the same thing that happened when they removed lead from gas to the valve seats is basically happening to our injectors , pumps , etc. The fuel is also becoming more caustic thus cleaning the tanks as whunter posted and possibly eating the rubber ? Do I get a E for effort ??
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Experience : what you receive 3 seconds after you really needed it !!




86 300SDL 387,000? Motor committed suicide
81 300SD 214,000 "new" 132,000 motor
83 300SD 212,000 parts car
83 300SD 147,000

91 F700 5.9 cummins 5spd eaton 298,000
66 AMC rambler American 2dr auto 108,000
95 Chevy 3/4 ton auto 160,000
03 Toyota 4runner 180,000 wifes
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  #45  
Old 12-06-2009, 05:59 PM
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Great job!

There are some similarities with what lead did for valves and what the sulfur compounds do for injector systems.

The cleaning and breakdown of rubber is due to solubility of the modified hydrocarbons with the "sludge" and rubber parts.

You got it!

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
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